Title:
METHOD FOR PRODUCING WATER-ABSORBING RESIN
Document Type and Number:
WIPO Patent Application WO/2020/067310
Kind Code:
A1
Abstract:
[Problem] To provide a method for producing a water-absorbing resin, wherein a monomer can be dispersed in a small amount of a dispersion medium, and the particle size of the water-absorbing resin is constant during the production over a long period of time. [Solution] A method for producing a water-absorbing resin, said method including: supplying, separately and continuously, a water-soluble ethylenically unsaturated monomer solution and an organic solvent to a flow channel in which a pair of walls having opposing surfaces that face each other with a gap therebetween are relatively moved so as to form a shear field; producing droplets containing the water-soluble ethylenically unsaturated monomer solution; and polymerizing said water-soluble ethylenically unsaturated monomer.
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Inventors:
IMURA MOTOHIRO (JP)
INOUE MASAHUMI (JP)
SATO MAI (JP)
HONDA KOJI (JP)
TAJIMA SHUN-ICHI (JP)
ARAKE TOMOYUKI (JP)
INOUE MASAHUMI (JP)
SATO MAI (JP)
HONDA KOJI (JP)
TAJIMA SHUN-ICHI (JP)
ARAKE TOMOYUKI (JP)
Application Number:
PCT/JP2019/037908
Publication Date:
April 02, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND (JP)
International Classes:
C08F2/01; C08F20/00
Foreign References:
| JPH09157313A | 1997-06-17 | |||
| JP2017502094A | 2017-01-19 | |||
| JP2010511759A | 2010-04-15 | |||
| JP2002080632A | 2002-03-19 | |||
| JPH08509510A | 1996-10-08 | |||
| JPH11106407A | 1999-04-20 | |||
| JPH06192305A | 1994-07-12 | |||
| JPH04363303A | 1992-12-16 | |||
| JP2019127586A | 2019-08-01 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
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